/* roulang page: index */
:root {
            --brand-500: #846f52;
            --brand-600: #6d5943;
            --brand-700: #554536;
            --brand-800: #3d3228;
            --brand-900: #29221b;
            --brand-950: #1a1510;
            --accent-500: #9a734a;
            --accent-400: #b08a63;
            --gold-400: #d4b055;
            --gold-500: #c69a3f;
            --night-600: #605448;
            --night-700: #4a4138;
            --night-800: #363029;
            --night-900: #25211b;
            --leaf-600: #496633;
            --bg-warm: #faf8f5;
            --bg-cream: #f3f1ed;
            --text-primary: #29221b;
            --text-secondary: #554536;
            --text-muted: #75695d;
            --border-light: #e6e1d8;
            --border-medium: #cfc6b6;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --radius-2xl: 2rem;
            --shadow-soft: 0 2px 20px rgba(42,34,27,0.06);
            --shadow-card: 0 4px 28px rgba(42,34,27,0.08);
            --shadow-hover: 0 12px 40px rgba(42,34,27,0.13);
            --shadow-gold: 0 4px 24px rgba(198,154,63,0.28);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.45s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--accent-500);
            outline-offset: 2px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 248, 245, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(42,34,27,0.08);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--brand-800);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #f5eed7;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .desktop-nav a.nav-link {
            padding: 0.55rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            position: relative;
        }
        .desktop-nav a.nav-link:hover {
            color: var(--brand-800);
            background: var(--bg-cream);
        }
        .desktop-nav a.nav-link.active {
            color: var(--brand-800);
            font-weight: 600;
        }
        .desktop-nav a.nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0.2rem;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent-500);
        }
        .nav-cta {
            margin-left: 0.6rem;
        }
        .nav-cta a {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.55rem 1.25rem;
            font-size: 0.88rem;
            font-weight: 600;
            color: #f5eed7;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-cta a:hover {
            background: linear-gradient(135deg, var(--brand-700), var(--brand-900));
            box-shadow: var(--shadow-gold);
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--brand-800);
            font-size: 1.4rem;
            padding: 0.5rem;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-toggle:hover {
            background: var(--bg-cream);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0.35rem;
            padding: 1rem 1.5rem 1.25rem;
            background: rgba(250,248,245,0.98);
            border-bottom: 1px solid var(--border-light);
        }
        .mobile-menu a {
            padding: 0.7rem 1rem;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover {
            background: var(--bg-cream);
            color: var(--brand-800);
        }
        .mobile-menu a.active {
            background: var(--bg-cream);
            color: var(--brand-800);
            font-weight: 600;
        }
        .mobile-menu .mobile-cta {
            margin-top: 0.4rem;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1rem;
            font-weight: 600;
            color: #f5eed7;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
            border-radius: 999px;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .section {
            padding: 4.5rem 0;
        }
        .section-sm {
            padding: 3rem 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-500);
            background: rgba(176,138,99,0.1);
            padding: 0.35rem 0.85rem;
            border-radius: 999px;
            margin-bottom: 0.9rem;
        }
        .section-label i {
            font-size: 0.7rem;
        }
        .section-heading {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin: 0 0 0.8rem;
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 640px;
            margin: 0;
        }
        .section-header-center {
            text-align: center;
        }
        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.75rem 1.6rem;
            border-radius: 999px;
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }
        .btn-primary {
            color: #f5eed7;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
            box-shadow: 0 4px 16px rgba(85,69,54,0.25);
        }
        .btn-primary:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .btn-outline {
            color: var(--brand-700);
            background: transparent;
            border: 1.5px solid var(--border-medium);
        }
        .btn-outline:hover {
            border-color: var(--brand-600);
            background: rgba(109,89,67,0.05);
            transform: translateY(-1px);
        }
        .btn-gold {
            color: var(--brand-950);
            background: linear-gradient(135deg, var(--gold-400), var(--gold-500));
            box-shadow: var(--shadow-gold);
        }
        .btn-gold:hover {
            box-shadow: 0 8px 28px rgba(198,154,63,0.4);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 0.9rem 2rem;
            font-size: 0.95rem;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: linear-gradient(180deg, #faf8f5 0%, #f3f1ed 100%);
            overflow: hidden;
        }
        .hero-bg-pattern {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            background-image: radial-gradient(circle at 15% 20%, rgba(176,138,99,0.06) 0%, transparent 45%),
                              radial-gradient(circle at 85% 75%, rgba(77,115,50,0.05) 0%, transparent 40%);
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.55fr 0.85fr;
            gap: 2rem;
            align-items: center;
            padding-top: 3.5rem;
            padding-bottom: 4rem;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-500);
            background: rgba(176,138,99,0.12);
            padding: 0.35rem 0.85rem;
            border-radius: 999px;
            margin-bottom: 1.1rem;
        }
        .hero-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--leaf-600);
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }
        .hero h1 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin: 0 0 1rem;
            letter-spacing: 0.01em;
        }
        .hero-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.85;
            margin: 0 0 1.5rem;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }
        .hero-stats {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat .value {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--brand-800);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 0.15rem;
        }
        .hero-stat-divider {
            width: 1px;
            height: 32px;
            background: var(--border-medium);
        }

        /* 进度环 */
        .progress-ring-wrap {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.6rem;
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.5rem 1.25rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }
        .progress-ring-wrap .ring-label {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-secondary);
        }
        .progress-ring-wrap .ring-value {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--brand-800);
            line-height: 1;
        }
        .progress-ring-wrap .ring-sub {
            font-size: 0.72rem;
            color: var(--text-muted);
            text-align: center;
            max-width: 150px;
            line-height: 1.5;
        }

        /* 档位预览 */
        .tier-preview {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .tier-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 0.85rem 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.65rem;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .tier-card:hover {
            border-color: var(--accent-400);
            box-shadow: var(--shadow-soft);
            transform: translateX(3px);
        }
        .tier-card .tier-info {
            display: flex;
            flex-direction: column;
            min-width: 0;
        }
        .tier-card .tier-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .tier-card .tier-meta {
            font-size: 0.72rem;
            color: var(--text-muted);
            margin-top: 0.1rem;
        }
        .tier-card .tier-price {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-500);
            white-space: nowrap;
        }
        .tier-card .tier-arrow {
            color: var(--border-medium);
            font-size: 0.75rem;
            transition: all var(--transition-fast);
        }
        .tier-card:hover .tier-arrow {
            color: var(--accent-500);
            transform: translateX(2px);
        }

        /* ===== 板块通用 ===== */
        .bg-cream-section {
            background: var(--bg-cream);
        }
        .bg-dark-section {
            background: linear-gradient(160deg, var(--brand-900), var(--brand-950));
            color: #e6e1d8;
        }
        .bg-dark-section .section-heading {
            color: #f3f1ed;
        }
        .bg-dark-section .section-desc {
            color: #b0a8a2;
        }
        .bg-dark-section .section-label {
            color: var(--gold-400);
            background: rgba(198,154,63,0.15);
        }

        /* ===== 最新动态 ===== */
        .update-list {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .update-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.9rem 1.1rem;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .update-item:hover {
            border-color: var(--accent-400);
            box-shadow: var(--shadow-soft);
            transform: translateY(-2px);
        }
        .update-item .update-date {
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent-500);
            background: rgba(176,138,99,0.1);
            padding: 0.25rem 0.6rem;
            border-radius: 6px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .update-item .update-text {
            font-size: 0.88rem;
            color: var(--text-secondary);
            font-weight: 500;
            flex: 1;
            min-width: 0;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .update-item .update-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--leaf-600);
            background: rgba(77,115,50,0.08);
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-medium);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.25rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
            list-style: none;
            user-select: none;
            gap: 1rem;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-cream);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--brand-600);
            flex-shrink: 0;
            transition: all var(--transition-base);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--accent-500);
            color: #fff;
        }
        .faq-item .faq-answer {
            padding: 0 1.25rem 1.1rem;
            font-size: 0.87rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* ===== 资讯区 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.7fr;
            gap: 1.5rem;
        }
        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: 0.55rem;
        }
        .news-main-item {
            display: flex;
            align-items: flex-start;
            gap: 0.9rem;
            padding: 0.85rem 1rem;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .news-main-item:hover {
            border-color: var(--accent-400);
            box-shadow: var(--shadow-soft);
        }
        .news-main-item .news-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(176,138,99,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-500);
            font-size: 0.8rem;
            flex-shrink: 0;
        }
        .news-main-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-main-item .news-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
        }
        .news-main-item .news-meta {
            font-size: 0.72rem;
            color: var(--text-muted);
            margin-top: 0.2rem;
        }
        .news-side {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
            background: var(--bg-cream);
            border-radius: var(--radius-lg);
            padding: 1.25rem;
        }
        .news-side h3 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.3rem;
        }
        .news-side-item {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 0.6rem 0;
            border-bottom: 1px solid var(--border-light);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .news-side-item:last-child {
            border-bottom: none;
        }
        .news-side-item:hover {
            transform: translateX(3px);
        }
        .news-side-item .side-index {
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--accent-500);
            background: rgba(176,138,99,0.12);
            width: 24px;
            height: 24px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .news-side-item .side-text {
            font-size: 0.8rem;
            color: var(--text-secondary);
            font-weight: 500;
            line-height: 1.4;
        }

        /* ===== 安全体系 ===== */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }
        .safety-card {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.25rem;
            transition: all var(--transition-base);
        }
        .safety-card:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.18);
            transform: translateY(-3px);
        }
        .safety-card .safety-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(198,154,63,0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold-400);
            font-size: 1.1rem;
            margin-bottom: 0.85rem;
        }
        .safety-card h3 {
            font-size: 0.92rem;
            font-weight: 700;
            color: #f3f1ed;
            margin: 0 0 0.4rem;
        }
        .safety-card p {
            font-size: 0.8rem;
            color: #b0a8a2;
            line-height: 1.65;
            margin: 0;
        }

        /* ===== App 下载 ===== */
        .app-section {
            background: linear-gradient(160deg, var(--brand-800), var(--brand-950));
            border-radius: var(--radius-2xl);
            overflow: hidden;
            position: relative;
        }
        .app-section .app-bg {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            opacity: 0.15;
            background-image: url('/assets/images/backpic/back-4.webp');
            background-size: cover;
            background-position: center;
            pointer-events: none;
        }
        .app-section .app-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 2rem;
            align-items: center;
            padding: 3rem 2.5rem;
        }
        .app-section h2 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.65rem;
            font-weight: 700;
            color: #f3f1ed;
            margin: 0 0 0.7rem;
        }
        .app-section p {
            font-size: 0.9rem;
            color: #cfc6b6;
            line-height: 1.75;
            margin: 0 0 1.2rem;
            max-width: 480px;
        }
        .app-btns {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .app-qr {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 0.6rem;
            box-shadow: 0 8px 30px rgba(0,0,0,0.3);
        }
        .app-qr .qr-box {
            width: 120px;
            height: 120px;
            border-radius: 10px;
            background: var(--bg-cream);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-600);
            font-size: 2.5rem;
        }
        .app-qr span {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--brand-950);
            color: #b0a8a2;
            padding: 3rem 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand h3 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.1rem;
            font-weight: 700;
            color: #f3f1ed;
            margin: 0 0 0.6rem;
        }
        .footer-brand p {
            font-size: 0.82rem;
            line-height: 1.7;
            color: #8f8378;
            margin: 0;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #e6e1d8;
            margin: 0 0 0.8rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }
        .footer-col ul a {
            font-size: 0.82rem;
            color: #8f8378;
            transition: all var(--transition-fast);
        }
        .footer-col ul a:hover {
            color: var(--gold-400);
            padding-left: 3px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
            padding-top: 1.5rem;
            font-size: 0.78rem;
            color: #75695d;
        }
        .footer-bottom a {
            color: #75695d;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--gold-400);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr 0.6fr;
                gap: 1.5rem;
            }
            .hero .tier-preview {
                grid-column: 1 / -1;
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 0.7rem;
            }
            .tier-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.3rem;
            }
            .safety-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .mobile-menu.open {
                display: flex;
            }
            .header-inner {
                height: 60px;
                padding: 0 1rem;
            }
            .brand-logo {
                font-size: 0.9rem;
            }
            .brand-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
                border-radius: 8px;
            }
            .section {
                padding: 3rem 0;
            }
            .section-sm {
                padding: 2rem 0;
            }
            .section-heading {
                font-size: 1.45rem;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 1.25rem;
                padding-top: 2rem;
                padding-bottom: 2.5rem;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.88rem;
            }
            .hero-stats {
                gap: 1rem;
            }
            .progress-ring-wrap {
                padding: 1.25rem 1rem;
            }
            .hero .tier-preview {
                grid-template-columns: 1fr;
            }
            .tier-card {
                flex-direction: row;
                align-items: center;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .safety-grid {
                grid-template-columns: 1fr;
            }
            .app-section .app-inner {
                grid-template-columns: 1fr;
                padding: 2rem 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.4rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            .hero h1 {
                font-size: 1.35rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 0.6rem;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stats {
                gap: 0.7rem;
            }
            .hero-stat .value {
                font-size: 1.05rem;
            }
            .update-item {
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            .update-item .update-text {
                white-space: normal;
                flex-basis: 100%;
                order: 3;
            }
            .news-main-item {
                flex-direction: column;
                gap: 0.5rem;
            }
            .btn-lg {
                padding: 0.8rem 1.5rem;
                font-size: 0.88rem;
            }
        }